Lock



.March 21, 1933. J. H. SHAW 1,902,343

LOCK

Filed March 7, 1929 2 sheets-sheet 1 March 21, 1933. I J, SHAW 1,902,343

LOCK

Filed March 7, 1929 2 Sheets-Sheet 2 EE/ LI! a Patented Mar. 21, 1933UNITED STATES PATENT JOHN H. SHAW, or NEW HAVEN, CONNECTICUT, ASSIGNOR rSABGENT a COMPANY, on NEW HAVEN, CONNECTICUT f nocx Application filedMarch 7, 1929. Serial N0.344,974.

My invention relates to locks and more especially to looks in which thelocking mechanism may be adjusted from the insideof a door to preventmanipulation of the mechanism from the exterior of the door.

The invention-relates particularly toa very simple and eflicient lock ofthe above character. 1 r

In a more specific aspect the invention relates to knob locksand one ofthe objects of the invention is to provide an improved construction ofthis character which may be readily manipulated to operate the lockmechanism. l

Another object of the invention is to provide a knob lock which may berendered inoperative from the interior of a door against manipulation byan ordinary or change key.

A further object of the invention is to provide a lock of the abovecharacter which may be readily restored to normal operative position bya master key. y

.To these and other ends, the invention consists in the novel featuresand combination of parts to "be hereinafter described and claimed. 7

In the drawings,

Fig. 1 is a fragmentary view of a door showing a lock according to myinvention mounted therein; V

Fig. 2 is an end view of the door and lock shown in Fig. 1;

Fig. 3 .is a sectional view alongline 3 3 J3 or Fig. 1,

Fig. 4 is a View similar to Fig. 3 but showing the lock parts in adiiferentposition;

Fig. 5 is a sectional view along line 55 of Fig. 3; i I

Fig. 6 is a sectional view along line 6-6 of Fig. 3;

7 is a sectional view along linc7 7 ofFig. 3;

Fig.8 isa sectlonal View along line 8 8 of Fig. 3; r V

9 is a sectional view along line.9-9

of Fig. 4; p 7

Fig. 10 is a sectional view along. line 1010 of Fig. 4; and

ure 10).

shanks 19 and 21 is prevented by keepers- Fig. '11 is a sectionalviewalong line {1 11-11 of Fig. 4.

- Referring to the drawings inwhich I have V illustrated my invention byshowing a preferred embodiment of the same, the reference numeral 15indicates apart of a door in which is mounted my improved lockgenerallydesignated by the reference numeral 16. The lock 16 comprises acase orframe 17 in which is mounted a transversely ex tending tube 18,in one end of'which is received the shank 19 of knob-20 while in theopposite end is shank 21 of knob 22. Shank 19 of knob 20 is'free torotate in tube 18 and at its inner end 23 is counterboredandtransversely slotted, as at24, for the reception of arms 25 and 26'ofr'ollback 27, arms 25 and 26 engaging abutments 28 and 29 --on yoke30, yoke 30having a stem 31 which passes through an interior wall 32 offrame '17 and is pivotally secured to the latch bolt 33, the latterbeing pivotally mounted in face plate 38 and 39 which pass throughsuitable openings in the'lockframe 1 7 and tube 18 and intocircumferential grooves 40 and 41- of shanks 19 and21, respectively.

Mounted in the knob 22 is 'a cylinder lock 42 having a keyplug 43 themovement of which is controlled by pin tumblers 44, key

plug 43 having a shank 45 on which a thimble46 is mounted, thimble-46being secured to shank '45 by means of pin 47.

Received in a preferably-square opening in the end 48 of thimble 46 is asquare rod 49 having mounted thereon a rollback 50 provided with arms 51and 52, which engageabutments' 28 and 29,1to retract bolt 33in a mannersimilar to the rollback arms 25 and 26. i Y r Mounted for axialreciprocation in the knob shank 19 is a rod 53 having a button-like heador end 54 which extends outwardly through knob 20, rod 53 being urgedaxially outwardly in shank 19 by compression spring 55,mounted:oniandgsurrounding rod 53, one end of spring55bearing againsthead 54, while the opposite end bears against a part of-'-t'he" -kiiolofi Rbd 53 is axially bored at 56 for the reaper-sates stem 57 on the endof rod 49, stem 57 being free to reciprocate and rotate in bore 561 Atthe opposite end of rod 49 from stemjl is a compression spring 5s,'"'me"nd"br which is received ;in an axiaLopeningQ-59 in rod 49, while theopposite'-"; endgflbears against a; disc 60 in thimble 46.;-@Rod49adjacent its end. is provided with an aninular groove 61 which may bebrougll izQpiposite the end 48 of thimblej 46 by;pressing button or head54 of -rodl53inwardl yg 1n this position of rod 49 the 'keypljug143 maybe rotated without producing rotation gin the rod. i In order that thelock parts may befheld in this position, a, transversely.; movable dog62 is mounted on rod '53, dog 62in. the particular instanceillustratedgybeing sub;

. stantially U-shaped and provitlcdwifi bg 63 and 64, which straddle-acentral part -of rod 53 and are received in slots; disposed atdiametrically opposite. points in rod 53 Dog 62 is constantly;urgfedradially out wardly by spring 65 whichmaybeconveniently disposedin groove 66in rojd 53,'and which in the preferredH-embodimentillustrated is provided with an end 67;bent Eat right angles to, themain; part; of -.the,spring and disposed in an opening;.68;.-in :rod 53.1' The normal position of dog. 6211s shown in Figs. 3 and 8. Upontheibutton54;being pushed inwardly in l nob; 20, 7the.";1dogf 62 isbrought opposite a radially diif'ected opening 69in tube 18 intowhichthe' dogzis forced by spring 65, whereupongthef-rod153 is heldagainst axial movement with the end 48 of thimble 46 opposite, groove;61 It will be readilyimderstood that; in; this position the latch boltcannotbeiretracted from the exterior of thedoorfibyintsertihg theordinary change key 7 0uin key-plugi43 and rotating the latter. 1 1 1at),

. In order that the lock mechanismjmay be restored to normal position,aniabutment '71 is provided on yoke 30, abutment 71 being v received inopening 69 during :the retrace tion and protraction of the latch.bolt.-;D.og

.62 is'provided with a curvedconvex head 72which maybe engaged by;abutment; .71

as the latter moves ,through opening .69, engagement of; head 72 withabutment v7.1 forcing the latter upwardly-into the-rod 53 until the dog'62 is received :wholly. with in the axial opening in shank 19;: where?upon rod 53 is free'to move outwardly under the urge of spring 55 topermit spring58 to force the square end of rod 49 through the squareopening in thimble end 48. Movement of rod 53 is limited by pin 73mounted in shank 19 and passing transversely through slot 74 in rod 53.

.In order that the latch may be retracted from the exterior of the doorwhen the button is held inwardly by dog 62 and thimble same is oppositegroove 61, a second thimble 75 is provided, mounted on and surroundingthimble 46, thimble 75 being free .to etate on thimble 46 and having anend vepraviata with a square opening in which ro.d;49;is received beyondgroove 61. Thimn V 's mounted in 'a counterbored opening Z 7; in--shankQl bein held against axial -t in. boreu77 lay shoulder 78 on nflange 7 9 on thimble 46. V ,provid edwith an. axially dir cted sl zasavh haial l y in alignment with the key slot 81 of key plug 43 whereby1a.;inastenkey 82gmay be inserted in thegkey plug, l the eext'ended end83 of the master'kerb ii s-r ived e$ 01 and a ingfihimb 54 1 91; J e a ofz k y P 43"? *fg'pe) Rf 1-54 i I The operation of my improvedlock maybe; readily understood from, the 1 above description byone skilledimtheart, but may beb e yrd seiibedi sc i s H he normal position; Qof thelock mecha,-

nism isshown in Figure whereinknob 20 may; b e rotated to i retract, thelatch bolt 33 th' eughthe en a eme .Q r l l a 27: with y-QkQ-BOa ntIi-Qlatc 3. niayretracted y rotation of key plugg43qupon the insertion oi asuitable; key; 7 latch .33 being retracted n this nsta es r i l r l .50mo nteden.sql arerq fi Whi hreceived in the end 48 of thimble 46 securedto -the key plug 43 by means of pin .47 ;When one at the. interiorof.the doorldesires to secure Ithel tqh a st re ract y. means of hordinary key 70, the buttonw54' is pressed i w rd y-a e: mere. d; ;l11fih direction of key plug 43 until' endf48 of thimbl 6 is opnesi etheer oj 1 61 1 red 49. Inthis'posmion;the spring '65 urgespresentinstance-comprising. an abutment 71 on yoke 30, which, uponretraction -ofithe latch sboltybyl the knob 20, engages dog; 62andforces the latter radially inwardly until the d0g-:,;iswhollymeceived Withinthe axial bore of shank 19, whereupon the spring 55moves the rod 53 and button 54 axially out- I whereupon the latch may beretracted by the usual key 70, as will be readily understood.

In order that the latch bolt may beretracted from the exterior of thedoor when the button 54 is secured in its innermost position by dog 62,a master key 82 may be" inserted in key plug 43, master key 82 having anextended end 83 which is received in the slot 80, in thimble rotation ofmaster key 82 producing rotation in rod 49 through thimble 75, and thusthe retraction ofthe latch bolt. It will be readily understood that thedog 62 is-released from opening '69 by the abutment 71 upon theretraction of the latch bolt by the master key. i

From the above description of the nature of my improved'lockand its modeotoperation, it will be readily understood that I have provided arelativelysimple' form of 1 locking mechanism inwhich a latch retractingmechanism may be secured from theinterior of the room against retractionby the usual change key at the exterior of the room, the mechanism beingsuch,-however, that the latch may be retracted at all times by the useof a master key received in the lock mechanism at the exterior of thedoor.

While I have shown and described a'preferred embodiment of my invention,it will be understood that the same is not to be limited to all thedetails shown, but is capable of modification and variation within. the

spirit of the invention and the scope of the appended claims.

What I claim is: V p

1. In a door look, a latch bolt, operating mechanism therefor, a knob onone side of said lock for actuating said operating mechanism and a keyoperated member" on the other side of the lock for actuating saidmechanism, said key operated member being adapted to receive a changekey and a master y, ans o th pp slde of the operating mechanism, andmeans conthe lock from said key operated member for disengaging the keyoperated member from connection with said mechanism for, operationthereof by the change key, whereby when the change key isreceived insaid lock it will rotate idly, and means controllable by themaster keycontrolled member for restoringthe engagement of the key con.- trolledmember with said operating mechanism. a V

2. In a door lock, a latch bolt, operating mechanism for said latchbolt, knobs, one on either side of said lock, one of said knobs beingconnected to said mechanism and adapted to actuate the same and; theother of said knobs having a cylinder lock therein, means normallyconnecting said mechanism to said cylinder lock whereby the mechanismmay be actuated by the cylinder lock'upon erating mechanism, a button onthe same.

side as saidknob for disengaging the'key controlled means from operativeengagement with the operating mechanism, and means controllable by theretraction of the latchlbolt for restoring the engagement of the keycontrolled means with the operating mechanism. 1 2

4. 1 131; doorlock, a latch bolt, operating mechanism therefor, memberspositioned on opposite sides ofsaid lock for actuating said operatingmechanism, the member on one side of said lock comprising key operatedmeans, meanson the other side of the lock to disengage said key operatedmeans from engagement with said 'mechanism, whereby the key operatedmeans may operate idly,

and means controllable by'the retraction of thelatch boltfor restoringthe engagement of said key operated means with said operating'mechanism. 7 3

5. In door lock, a latch bolt, operating mechanism-for said latch bolt,knobs one on eithersideof said lock, one of said knobs being connectedto said mechanism' and adapted to actuate the same and the otherofsaidknobs-having a, cylinder look therein' nornially connected to.said mechanism and adapted to actuate the same, means on thelock case onthe same side as thefirst mentioned knob for disengaging said cyl-.

inder look from operative connection with on either side ot'said lock,one of said knobs being connected to said mechanism and adapted toactuate the same,-and the other of said knobs having a cylinder looktherein normally connected to said. mechanism andadapted' to actuate thesame, a button in the first mentioned knob, means controlled bysaidbn'tton-tor disengaging the cylinder lock fromoperativeconnectionjvith the operating mechanism, and means "controllable by apart of the latch operating mechanism upon'i-en-aenon of the latch forrestoring the engagement of the cylinder lock with the operatingmechanism.

7. In a door lock, a latch bolt, operating mechanism for said latchbolt, a knob on one side of said lock for actuating said operatingmechanism, key operated means on the other side of said lock, said meansbeing adapted to actuate the operating mechanism upon the insertion of achange key, means on the lock on the same side as said knob fordisengaging the key operated means from operative engagement with theoperating mechanism, and means operable by a .master key received insaid key operated means for restoring the engagement of said keyoperated means with theoperating mechanism. I

p '8. In a door lock, a latch bolt, operating mechanism for said latchbolt, a knob on one side ofsaid lock foractuating said operatingmechanism, key operated means on. the other side of said lockfor'actuating the operating mechanism upon the insertion, of

a change key, a button on the same side as said knob for disengaging thekey operated means. from engagement with the operating mechanism foractuation by the change key, means engageable by a master key receivedin said key operated means for operating said latch mechanism, and meanscontrollable by the retraction of the latch bolt for restoring theengagementof said key operated'means with the operating mecha: nism foroperation by the change key.

9. In a door lock, a latch bolt, operating mechanism for said latchbolt, knobs one on either side of said lock, one of said knobs beingconnected to said mechanism and adapted to actuate the same, and theother of said knobs having a cylinder lock therein normally connected tosaid mechanism and adapted to actuate the same, a button in the firstmentioned knob, means controlled by said button for disengaging thecylinder lock from normal operative connection with the operatingmechanism, means engageable by a master key-received in the cylinderlock for retracting the latch bolt, and means controllable by theretraction of the latch bolt for restoring the engagement of thecylinder lock with the operating mechanism.

- means 10. In a door look, a latch bolt, operating mechanism for saidlatch bolt, a knob on one side of said lock for actuating the operatingmechanism, key operated means on the other side of said lock foractuating the operating mechanism, and means for disengaging said keyoperated means from normal operative engagement with the operatingmechanism, said" disengaging means comprising a movable rod mounted forreciprocation in said knob, a second rod engageable by said first namedrod and mounted for movement relatively 'to said key operated means, andon the end of thesecond rod for engaging a part of the key operatedmeans to permlt operation of the operating mechanism by the key operatedmeans.

, 11. In a door lock, a latch bolt, retracting mechanism therefor, aknob on one side of said lock-- for actuating said retracting Imechanism, and a key operated member on the other side of the lock foractuating said mechan1sm, said key operated member being adapted toreceive achange key and a master key, 'means'on the opposite side of thewith said "operating mechanism for operation thereof by the change key.7

' 12.- In a. door lock, a latch bolt, retracting mechanism .forlsa'idlatch bolt, a knob on oneside of said lock for actuating saidretractingmechanism, .key operated means on the other side of said lock,said means being adapted to actuate the retracting mechanism upon theinsertion of a change key in the key operated means, means on the lockon the same side as said knob for preventing the operation of theretracting mechanism by means of the change key, and means operable by amaster key received in said key operated means for restoring said keyoperated means to change key operable condition. 13. In a door lock, alatch bolt, retracting mechanism for said latch bolt, key operated meanson one side of said lock for actuating theretracting mechanism, adepressible'button on the opposite side of said lock from the keyoperated means, said button being adapted upon depression to disengagethe key operated means from operative engagement with the retractingmechanism, means for holding said button in depressed position, andmeans operable by the retraction of the latch bolt for releasing saidbutton holding means. I

14. In a door look, a la-tch'bolt, retracting mechanism for saidlatchbolt, a key operated member, a connection between the key operatedmember and the retractingmechanism, means for interrupting theconnection between the key operated member'and' the retractingmechanism, and means controlled by the movement of the latch bolt forrestoring the connection between the member and the retractingmechanism.

15. In a door look, a latch bolt, retracting mechanism for said latchbolt, key operated means on one side of said lock for actuating theretracting mechanism, a plurality of connections between said keyopera-ted means and of said connectionsbeing operable a change key andthe other by a master'key,

said retracting mechanism, one

of said connections being operableby a the means extending into theretracting ber, said axially movable means having an change key and theother by a master key, and means on the other side ofthe door from saidkey operatedmeans for disengaging one of said connectionsfrom operativeengagementwith the retracting mechanism, and means operative uponretraction of the latch bolt for restoring said connection to operativeengagement'with the retracting mechanism.' 7 r 17. In a door lock,alatch bolt, retracting mechanism for said latch bolt, key operated meanson one side of said lock for actuating the retracting mechanism, saidkey operated means including a plurality of connections with saidretracting mechanism, one of said connections being operable by a changekey and the other by a master key, meanson the other side of the doorfrom the key operated means for disengaging the change key operableconnection from engagement with theretracting mechanism, and meansoperable upon the retraction of the latch bolt for restoring saidconnection to operative engagement with the retracting mechanism.

18. In a door look, a latch bolt,,retracting mechanism for said latchbolt, operating members for said retracting mechanism one on either sideof said lock, said operating members having means extending into thelock for actuating said retracting mechanism, the means on oneof saidmembers extending into and being axially movable in mechanism from theother operating memoperative engagement with its-respective op eratingmember in one position of axial movement, and being free from operationthereby in another position of the axial movement. I p

19. In a door look, a latch bolt, retracting mechanism for said latchbolt, a knob at the interior of the door having a stem extending intoand in operative engagement with the retracting mechanism, means at theother side of said door for operating said retracting mechanism, saidmeans ineluding an axially movable rod extending an operative engagementwith a part of the retracting mechanism and being normallyin operativeen agement with its operating means, and axially movable means mountedin said knob and engaging said rod to move v 7 =21. In a 'door look, alatch bolt, retractin the latter into position to disengage it from coperatin a means. 1 20, In a door lock, a latch bolt, retracting'mechanism for said latch bolt, a knobat theinterior of the. door havinga stem extendingi'nto and in operative engagement with the retractingmechanism, means at the' mechanism for said latchbolt,'a knob at theinterior ofthe door having a stem extendin'ginto and in operativeengagement with vthe retracting mechanism, means at the other side ofsaid. doorfor operating said retracting mechanism, said means includingan axially movable'rod extending into the stealmof said knob, said rodhaving an operati've engagement with a part of theretracting mechanismand being normally in operative engagement with its operating means, andan axially-movable ro dmounted in said knob and engaging said firstnamed rodto move the latter into position wherein it is disengaged fromits operating means, a radially movable dog assoc1ated with said secondnamed rod, means engaging saiddog upon movement of the rod intodisengaging "position to hold the rod against movement,

and means on a part of the latchmechanis-m for releasing the-dog uponmovement of the latch bolt.

22. In a door lock, a latch bolt, operating Imecha'nism forsaid-latch-bolt, a knob onvone sideof the lock for actuating saidoperating mechanism, key operated means on the other :side. of said lockfor actuating the operating mechanism, a thimble-on'the inner end of'jsa-idkey operating means, an axially movable shaft mounted in saidthimble and extending into the operating mechanism, saidshaft havinganon-circular part and a circu lar part, said thimble having a partnorimall'y embracing the noncircular the shaft, and means for movingSaid. shaft to bring-the circular part thereof opposite the said part ofthe thimble. I

art of side of said lock for actuating the operating 'mechanism,athimbleon the inner end? of mechanismforsaid latch bolt, a knob on oneinto the stem of said knob, said rod having} imechanism, key operatedmeans on the'other fsaid-key operated means, an axially movable:sha'ftmounted inlsaid thimble and extend'- ing into the operatingmechanism, said shaft having a non-circular part and a circular part,said thimble having apart normally embracing the non-circular part ofthe shaft, and means for moving said shaft to bring the circular partthereof opposite the said part of the thimble, said last named meanscomprising an element extending through the knob.

24. In a door lock, a latch bolt,operating mechanism for said latchbolt, a knob on one side of the lock for actuating said operatingmechanism, key operated means on the other side ofsaid lock foractuating the operating mechanism, a thimble on the inner endof said keyoperated means, an axially movable shaft mountedin said thimble andextending into the operating mechanism, said shaft having a non-circularpart and a cir-V cular part, said thimble having a part normallyembracing the non-circular part of the shaft, and means for moving saidshaft ing into the operating mechanism, said shaft having a non-circularpart and a circular part, said thimble having a part normally embracingthe non-circular part of the shaft, means for moving said shaft to bringthe circular part thereof opposite the said M part of the thimble, andmeans associated with key operated means for rotating said shaft ineither of said positions. r V

In witness whereof, I have hereunto set my hand this 14th day ofFebruary, 1929.

JOHN H. SHAW;

to bring the circular part thereof opposite I the said part of thethimble, said last named means comprising anelement extending throughthe knob, and a dog associated with the shaft moving means adapted tohold the I I shaft in one position of axial movement.

.T 25. In a door lock, a latch bolt, operating mechanismfor said latchbolt, a knob on one side of the lock for actuating said operatingmechanism, key operated means on the other side of said lock foractuatingthe operating mechanism, a thimble on the inner end of said keyoperated means, an axially movable shaft mounted insaid thimble andextending into the operating mechanism, said shaft having a non-circularpart and a circular part,said thimblehaving a part not mally embracingthe non-circular part of the shaft, and means for moving said shaft tobring the circular part thereof opposite. V

the said part of-the thimble, said last named means comprising anelement extending through the. knob, and means actuated by V retractionof the latch bolt for releasing said i I dog.

V 26. In a door lock, a latch bolt, operating -mechanismfor said latchbolt, a knob on one side of the lock for actuating said operatingmechanism, keyoperated meanson the other side of the lock for actuatingthe operating mechanism, a thimble on the inner end of said keyoperatedmeans, an axially ,movable shaft mounted in said thimble and extendinginto the operating mechanism, said shafthaving a non-circular part and acircular part, said thimble having a part nor- ,mally embracing thenon-circular part of the shaft, means for inovingsaid' shaftto 'bringthe circular part thereof opposite the I said part of the thimble, andmeans associated with the. key operated means for ro- Ttating saidshaft. in the last named position thereof. r

CERTEFICATE 0F {IGRREGTEGN March 21, 1935.

MEN 5. SHAW.

m1 appears in the printed spscification 0f the mag cm'mctian as failaws:Page 3, iine 53, claim nd line 56, same claim, after Ear aperatianthereof by the change key"; uld be read with ihese carrections thereinF-BCGId 0f the case in the Patent ()ffice. this lth day 0% May, A. D.1933 J. Moore.

Acting Commissioner of Patents.

(Seal)

